A welding device for processing fitness equipment accessories comprises a welding table and a welding machine, wherein a first adjusting device is arranged on the left side of the upper surface of the welding table, and a second adjusting device is arranged on the right side of the upper surface of the welding table; The first adjusting device is movably connected with the second adjusting device through a sliding mechanism; The first adjusting device is provided with a first pressing device, and the second adjusting device is provided with a second pressing device.